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Optical lift is different from the aerodynamic lift created by an airfoil.
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Most helicopters have rotating airfoil shaped blades on top of the fuselage.
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They're going to have an airfoil which allows it to return.
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So now we're gonna make this boomerang come back by adding an airfoil.
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Let's say the airfoil was a rotating plastic disk, absolutely transparent.
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That could have been a reflection from the airfoil.
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How could it fly without some kind of airfoil?
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But the circular airfoil is quite feasible.
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The jobs, which are backed by IDA Ireland, will be created at AlliedSignal's aerospace airfoil plant over five years.
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The second type was said to be a jet version of the Navy's circular airfoil "Flying Flapjack."
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His breakthrough improvement, after switching from metal to molded plastic, was curving the disc's outer edge like an airfoil.
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The scalpel's edge was exactly one atom wide; it delaminated the skin of Hackworth's palm like an airfoil gliding through smoke.
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The delta wing's large area, thin airfoil cross-section, low weight and structural strength gave this design a great potential for a supersonic airplane.
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For concentrated heating and cooling, air is released from a jet and accelerated over an airfoil-shaped ramp to produce a focused flow of air.
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Until it does, though, you can use Airfoil to achieve the same thing.
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Some of this was with oval and round types of airfoils.